US4903167A - Casing for accommodating electric and/or electronic components - Google Patents

Casing for accommodating electric and/or electronic components Download PDF

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Publication number
US4903167A
US4903167A US07/208,576 US20857688A US4903167A US 4903167 A US4903167 A US 4903167A US 20857688 A US20857688 A US 20857688A US 4903167 A US4903167 A US 4903167A
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US
United States
Prior art keywords
casing
lid
snap nose
board
printed circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US07/208,576
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English (en)
Inventor
Ernst Lichtensperger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schleicher for Accommodating Electric GmbH and Co KG
Original Assignee
Schleicher for Accommodating Electric GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schleicher for Accommodating Electric GmbH and Co KG filed Critical Schleicher for Accommodating Electric GmbH and Co KG
Application granted granted Critical
Publication of US4903167A publication Critical patent/US4903167A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1417—Mounting supporting structure in casing or on frame or rack having securing means for mounting boards, plates or wiring boards

Definitions

  • the present invention relates to a casing for accommodating electric and/or electronic components of all types which are disposed upon a printed circuit board (pc board), consisting of a lower box with U-shaped cross section, and a lid having a plane surface and closing said lower box.
  • pc board printed circuit board
  • casings of a type here referred to as used in particular for modular construction units to be either introduced into associated switch boxes or to be inserted into associated casing frames frequently the disadvantage is felt that supplementary means such as bolts or special locking devices are required for closing them, which means an additional consumption of time during assembly.
  • supplementary means such as bolts or special locking devices are required for closing them, which means an additional consumption of time during assembly.
  • Other casings are known in which the lid may be force-lockingly or form-lockingly snapped on, however, as a rule, there is no possibility of opening said lid without destroying it.
  • FIGS. 1 and 2 cross section of a first and second embodiment the casing, respectively, demonstrating the insertion of a printed circuit board
  • FIG. 3 a part-sectioned drawing of a front view of the casing, representing the insertion and locking of the lid.
  • the lower box 30 which has a U-shaped cross section, includes three casing walls 1, 2, 3, the numeral 1 designating the bottom of said casing from , which the side walls marked with the reference numerals 2 and 3 are perpendicularly directed upward.
  • the casing parts 14 and 15 in the area of the casing wall 3 serve other purposes which do not develop the here presented innovation further so that we need not go more into such details.
  • one or more recesses 6 are cut out of one of said side walls 2 so that the wall material defining said recess or recesses 6 is bent as an integral part of said casing wall 2 toward the interior of said casing in the shape of lugs, latches or tongues, in order to form there one or more snap noses 7.
  • the snap noses 7 are for locking a printed circuit board 4 in place as seen in FIG. 1.
  • a U-shaped slot is provided around three sides of each snap nose 7 at the respective locations in the casing wall 2.
  • the snap nose 7 is bent inwardly from the plane of the casing wall 2 as will be seen from FIG. 1, being furthermore shaped so as to make the bracket-shaped snap nose of FIG.
  • a second embodiment of a snap nose 20 is represented in FIG. 2 being likewise an integral part of the casing wall 2 and having a U-shaped cut-out therearound, the free end of said snap nose being situated in front and the end connected with the casing being in the rear, seen in the direction of view upon the drawing plane.
  • a slope 21 is tip-stretched at the free end, which extends over only a part of the length of the snap nose 20 within the U-shaped cut-out.
  • the snap nose 20 is provided with a protrusion 22 analogous to the protrusion 8 in FIG. 1, which extends rectangularly from the part of the snap nose situated within the casing wall, and is located beside the slope 21 at the largest width of same.
  • the printed circuit board 4 is inserted by first introducing it in slanting position from left toward right into said casing as indicated by the dot-dash line of FIG. 2, until its edge engages into a groove or stop made in the casing wall 3 and not represented in the drawing, whereupon it is then pressed downward along the arrow curve sliding along the inner curved back of the snap nose 7 or the slope 21 of the snap nose 20 which is pressed outwardly with respect to the casing, until the circuit board 4 reaches the rest position represented in FIGS. 1 and 2 by solid lines.
  • a bead 9 is provided which engages form-lockingly into an associated hole or recess within the associated surface of the printed circuit board 4 thereby also form-lockingly defining the angular position of the snap nose 7, 20. It is possible to provide a plurality of such snap noses 7, 20 along the casing wall 2, however, frequently a single snap nose within the casing is sufficient for safely locking the printed circuit board 4 into position.
  • a lid 5 may be put thereon in order to close same as desired.
  • slots 16 and 19 are provided immediately adjacent to the two upper edges 17 and 18 of the casing walls 2 and 3.
  • the affected edge areas of the lid 5 to be inserted there form stop tongues 12 which are defined as double, obtuse-angle displacements of the edge areas as will be seen from FIG. 3.
  • a plurality of slots 16, 19 and associated stop tongues 12 are provided on the edge areas of the lid in order to permit the alignment of the lid surface with the upper edges 18 and 17.
  • the lid 5 is preferably inserted at first into the slots 16 along the side wall 3 and then snapped into the slots 19 within the side wall 2, but also the reverse action, i.e., to insert it at first into the slots 19 and then to snap it into the slots 16, is possible.
  • a lateral part 13 closes the front side of the lower box 30 only partly across the area of the printed circuit board 4 as seen in FIG. 3.
  • At least one accommodation device for an electric connection element may be provided in the casing wall 2 or 3.
  • Said electric connection element will have thereby the form of a chassis clamp and is provided with elastic arms which extend diagonally upward or downward respectively from a back part.
  • the casing wall is provided with guides, e.g., dovetail guides, into which the back part of said chassis clamp is inserted.
  • An embossment directed toward the casing wall is formed in said back part, which engages into a recess provided in the casing wall 2, 3, causing thus a prestress upon said elastic arms which press upon said printed circuit board in its inserted position establishing thus an electric connection with a conductor path on the printed circuit.
  • the lid being of metal has at the same time the function of a shielding protecting the components on the printed circuit board against any disturbing radiation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Casings For Electric Apparatus (AREA)
US07/208,576 1987-06-12 1988-06-13 Casing for accommodating electric and/or electronic components Expired - Fee Related US4903167A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8708332[U] 1987-06-12
DE8708332U DE8708332U1 (de) 1987-06-12 1987-06-12 Gehäuse für die Aufnahme von elektrischen und/oder elektronischen Bauteilen

Publications (1)

Publication Number Publication Date
US4903167A true US4903167A (en) 1990-02-20

Family

ID=6809087

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/208,576 Expired - Fee Related US4903167A (en) 1987-06-12 1988-06-13 Casing for accommodating electric and/or electronic components

Country Status (4)

Country Link
US (1) US4903167A (fr)
DE (1) DE8708332U1 (fr)
FR (1) FR2616616B3 (fr)
IT (1) IT213956Z2 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307503A (en) * 1989-07-03 1994-04-26 Mitsumi Electric Co., Ltd. Shielded circuit module with terminal pins arrayed on four sides for connection to a computer board
US5397856A (en) * 1992-11-04 1995-03-14 Samsung Electronics Co., Ltd. Substrate fixing apparatus
US5934775A (en) * 1998-08-26 1999-08-10 Ho; Hsin Chien Quick release terminal holder mounting arrangement for a computer
US6154261A (en) * 1996-12-04 2000-11-28 Samsung Electronics Co., Ltd. Substrate coupling structure for flat-panel display
US6370031B2 (en) * 1997-05-28 2002-04-09 Samsung Electronics Co., Ltd. Printed circuit board retaining device for monitors
DE10161173C1 (de) * 2001-12-13 2003-07-17 Hella Kg Hueck & Co Vorrichtung zur lagerichtigen Befestigung einer Leiterplatte
EP1338931A1 (fr) * 2002-02-19 2003-08-27 Seiko Epson Corporation Connecteur, unité de développement et appareil de formation d'images
US20050159020A1 (en) * 2002-07-13 2005-07-21 Smiths Heimann Gmbh Assembling/disassembling and fixing a printed circuit board
EP1587349A1 (fr) * 2002-12-27 2005-10-19 FCI Asia Technology Pte Ltd. Dispositif de fixation de carte
US20080094814A1 (en) * 2006-10-23 2008-04-24 Shuttle Inc. Motherboard positioning apparatus for fast installation
US20090257206A1 (en) * 2008-04-11 2009-10-15 Bernd Beyer Holding apparatus
US20120327579A1 (en) * 2011-06-22 2012-12-27 Hon Hai Precision Industry Co., Ltd. Computer chassis for mounting motherboard therein

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8803790U1 (de) * 1988-03-21 1989-07-27 Robert Bosch Gmbh, 7000 Stuttgart Halter für Hybridplatten mit elektronischen Bauelementen
DE3831961A1 (de) * 1988-09-21 1990-03-22 Bosch Gmbh Robert Halter fuer hybridplatten mit elektronischen bauelementen
DE4111912C2 (de) * 1991-04-12 1993-10-14 Kloeckner Moeller Gmbh Leiterplattenanordnung und Kontaktvorrichtung für Steuersysteme

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3737729A (en) * 1971-06-14 1973-06-05 Zeltex Inc Electronic package and method of construction
US4092698A (en) * 1976-09-16 1978-05-30 Analog Devices, Incorporated Protective case for electrical instruments on circuit boards
US4528616A (en) * 1983-03-28 1985-07-09 Gte Automatic Electric Inc. Printed wiring board enclosure
US4672510A (en) * 1984-10-19 1987-06-09 Burr-Brown Corporation Package for an expandable remote interface unit
US4713633A (en) * 1985-12-24 1987-12-15 Murata Manufacturing Co., Ltd. Cover attaching arrangement for casing of dielectric coaxial resonators

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3737729A (en) * 1971-06-14 1973-06-05 Zeltex Inc Electronic package and method of construction
US4092698A (en) * 1976-09-16 1978-05-30 Analog Devices, Incorporated Protective case for electrical instruments on circuit boards
US4528616A (en) * 1983-03-28 1985-07-09 Gte Automatic Electric Inc. Printed wiring board enclosure
US4672510A (en) * 1984-10-19 1987-06-09 Burr-Brown Corporation Package for an expandable remote interface unit
US4713633A (en) * 1985-12-24 1987-12-15 Murata Manufacturing Co., Ltd. Cover attaching arrangement for casing of dielectric coaxial resonators

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307503A (en) * 1989-07-03 1994-04-26 Mitsumi Electric Co., Ltd. Shielded circuit module with terminal pins arrayed on four sides for connection to a computer board
US5397856A (en) * 1992-11-04 1995-03-14 Samsung Electronics Co., Ltd. Substrate fixing apparatus
US6154261A (en) * 1996-12-04 2000-11-28 Samsung Electronics Co., Ltd. Substrate coupling structure for flat-panel display
US6370031B2 (en) * 1997-05-28 2002-04-09 Samsung Electronics Co., Ltd. Printed circuit board retaining device for monitors
US6643140B2 (en) 1997-05-28 2003-11-04 Samsung Electronics Co., Ltd. Printed circuit board retaining device for monitors
US5934775A (en) * 1998-08-26 1999-08-10 Ho; Hsin Chien Quick release terminal holder mounting arrangement for a computer
DE10161173C1 (de) * 2001-12-13 2003-07-17 Hella Kg Hueck & Co Vorrichtung zur lagerichtigen Befestigung einer Leiterplatte
EP1701224A1 (fr) * 2002-02-19 2006-09-13 Seiko Epson Corporation Connecteur, cartouche de développement et appareil de formation d'images
EP1338931A1 (fr) * 2002-02-19 2003-08-27 Seiko Epson Corporation Connecteur, unité de développement et appareil de formation d'images
US20030170042A1 (en) * 2002-02-19 2003-09-11 Seiko Epson Corporation Connector, development cartridge, and image forming apparatus
US6892039B2 (en) 2002-02-19 2005-05-10 Seiko Epson Corporation Connector having a built-in memory IC mounted on a development cartridge
US20050159020A1 (en) * 2002-07-13 2005-07-21 Smiths Heimann Gmbh Assembling/disassembling and fixing a printed circuit board
US7692934B2 (en) * 2002-07-13 2010-04-06 Smiths Heimann Gmbh Assembling/disassembling and fixing a printed circuit board
EP1587349A4 (fr) * 2002-12-27 2006-04-26 Fci Asia Technology Pte Ltd Dispositif de fixation de carte
US20060189196A1 (en) * 2002-12-27 2006-08-24 Yasutoshi Kameda Board securing device
EP1587349A1 (fr) * 2002-12-27 2005-10-19 FCI Asia Technology Pte Ltd. Dispositif de fixation de carte
US7300298B2 (en) 2002-12-27 2007-11-27 Fci Board securing device
US20080094814A1 (en) * 2006-10-23 2008-04-24 Shuttle Inc. Motherboard positioning apparatus for fast installation
US20090257206A1 (en) * 2008-04-11 2009-10-15 Bernd Beyer Holding apparatus
US8537556B2 (en) * 2008-04-11 2013-09-17 Siemens Aktiengesellschaft Holding apparatus
US20120327579A1 (en) * 2011-06-22 2012-12-27 Hon Hai Precision Industry Co., Ltd. Computer chassis for mounting motherboard therein

Also Published As

Publication number Publication date
IT8821405V0 (it) 1988-06-10
FR2616616B3 (fr) 1989-07-07
FR2616616A3 (fr) 1988-12-16
DE8708332U1 (de) 1987-08-06
IT213956Z2 (it) 1990-03-05

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